/Engine/Source/Runtime/Foliage/Public/InstancedFoliageActor.h
static bool FoliageTrace ( const [UWorld](API\Runtime\Engine\Engine\UWorld) * InWorld, [FHitResult](API\Runtime\Engine\Engine\FHitResult) & OutHit, const [FDesiredFoliageInstance](API\Runtime\Foliage\FDesiredFoliageInstance) & DesiredInstance, [FName](API\Runtime\Core\UObject\FName) InTraceTag, bool InbReturnFaceIndex, const FFoliageTraceFilterFunc & FilterFunc, bool bAverageNormal )